O come all ye faithful
attributed to various authors

Adeste fideles læti triumphantes, Venite, venite in Bethlehem. Natum videte Regem angelorum: Venite adoremus (3×) Dominum. Deum de Deo, lumen de lumine Gestant puellæ viscera Deum verum, genitum non factum. Venite adoremus (3×) Dominum. Cantet nunc io, chorus angelorum; Cantet nunc aula cælestium, Gloria, gloria in excelsis Deo, Venite adoremus (3×) Dominum. Ergo qui natus die hodierna. Jesu, tibi sit gloria, Patris æterni Verbum caro factum. Venite adoremus (3×) Dominum.

O come, all ye faithful, joyful and triumphant! O come ye, O come ye to Bethlehem; Come and behold him Born the King of Angels: O come, let us adore Him, (3×) Christ the Lord. God of God, light of light, Lo, he abhors not the Virgin's womb; Very God, begotten, not created: O come, let us adore Him, (3×) Christ the Lord. Sing, choirs of angels, sing in exultation, Sing, all ye citizens of Heaven above! Glory to God, glory in the highest: O come, let us adore Him, (3×) Christ the Lord. Yea, Lord, we greet thee, born this happy morning; Jesus, to thee be glory given! Word of the Father, now in flesh appearing! O come, let us adore Him, (3×) Christ the Lord.

© Wikipedia, the free encyclopedia "O Come, All Ye Faithful" (originally written in Latin as Adeste Fideles) is a Christmas carol which has been attributed to various authors, including John Francis Wade (1711–1786), John Reading (1645–1692) and King John IV of Portugal (1604–1656), with the earliest manuscript of the hymn bearing his name, located in the library of the Ducal Palace of Vila Viçosa. The original four verses of the hymn were extended to a total of eight, and these have been translated into many languages. The English translation of "O Come, All Ye Faithful" by the English Catholic priest Frederick Oakeley, written in 1841, is widespread in most English speaking countries. The present harmonisation is from the English Hymnal (1906). An original manuscript of the oldest known version, dating from 1751, is held by Stonyhurst College in Lancashire.